Li-ion vs. Lithium Iron Phosphate (LiFePO4) batteries

Introduction

When employing power sources to operate embedded equipment, it is not always simple to drop in a fresh pair of batteries. Batteries that can contain a considerable quantity of energy, be lightweight enough just to carry or move, and be safe for the user are required by newer technology ranging from smartphones to electric vehicles to portable power tools. All of these advantages are available with lithium batteries for portable gadgets, cars, medical equipment, and sometimes even grid energy storage.

The two types of batteries utilized in today’s portable electronics are lithium-ion and lithium iron phosphate. While they have certain similarities, they differ significantly in terms of high energy density, lengthy life cycles, and security. Most individuals have heard of lithium-ion batteries because they possess a smartphone, tablet, or computer. Lithium iron phosphate is a new process recently of battery that is gaining popularity in the industrial industries because to its low-cost materials and great temperature stability.

Is Lithium Iron Phosphate the same as LiFePO4?

Yes, both Lithium Iron Phosphate and the LiFePO4 are same. LiFePO4 is the molecular formula of Lithium Iron Phosphate.

LiFeP04 lithium batteries are the most dependable and secure lithium batteries made of lithium iron phosphate. It employs an iron phosphate cathode and a graphite anode. Most manufacturers are beginning to choose this lithium-ion type because of its small size and lightweight, as well as its extended cycle life. It has an energy density of 90/120 Wh/Kg and a standard voltage of 3.0 to 3.2 volts. The charging rate is 1C, while the discharge rate ranges from 1 to 25C.

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When compared to conventional lithium batteries, lithium iron phosphate batteries provide numerous advantages. Some of the benefits provide a longer life term, being incredibly safe, lightweight, requiring no maintenance, enhanced discharge and charge efficiency, and being extremely safe. Mobile power systems with LiFePO4 batteries are not the cheapest on the market due to their long-life span and lack of maintenance. However, it is the most beneficial investment that you can make.

What is the difference between Li-ion and LiFePO4 batteries?

There are various differences between Li-ion and LiFePO4 batteries, which are as follows:

Life Cycle Difference

The lifespan of lithium iron phosphate ranges between 1,000 and 10,000 cycles. These batteries can withstand high temperatures with little deterioration. They have a long and healthy life for applications that contain embedded systems or need to run for lengthy periods of time before requiring to be charged.

The higher energy density of lithium-ion makes it more unstable, particularly in higher operating temperature conditions. It has a life cycle of 500-1,000 cycles because it is significantly impacted by the operating temperature of the electronics or functioning components.

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Long Term Storage Benefit

When preserving unused batteries, it is critical to choose a chemistry that will not lose its charge over time. However, the battery should behave similarly to when it has been used for more than a year. Long-term storage advantages are provided both by lithium iron phosphate and lithium ion. With a 350-day shelf life, lithium iron phosphate can be retained for a longer period of time. The shelf life of lithium-ion batteries is around 300 days.

Capacity

The capacity of a battery is a measurement of the amount of energy it can hold. While capacity statistics vary depending on the battery model and manufacturer, lithium-ion battery technology has been demonstrated to offer much superior energy density than lead acid batteries. This means that a lithium-ion battery can store more energy in the same physical environment. Because lithium-ion technology can store more energy, it can discharge more energy, allowing you to power more appliances for extended periods of time.

Efficiency

Battery efficiency is a crucial parameter to consider when evaluating different choices, just the same as solar panel efficiency. Many lithium-ion batteries are 95% efficient or higher, which means that 95% or more of the energy carried in a lithium-ion battery may be used. Lithium Iron Phosphate batteries, on the other hand, have efficiencies that range between 80 and 85 percent. Increased efficiency implies a greater effective battery capacity, and improved efficiency means faster charging.

Depth of Discharge

The depth of discharge of a battery is the proportion of the battery that may be safely discharged of energy without destroying the battery. While it is typical to use 85 percent or more of the total capacity of a lithium-ion battery in a complete cycle, lead acid batteries must not be discharged past around 50 percent, as this reduces the battery’s lifetime. Because lithium-ion technology allows for greater depth of discharge, lithium-ion batteries have a higher e?ciency than other choices, especially when considering the higher energy density of lithium-ion technology noted above.

What machine is LiFePO4 battery used for?

Lithium iron phosphate is looked after for any electronics or equipment that require safety and lifespan but do not require a high energy density. Electric motors for automobiles, medical gadgets, and military applications in which the technology will be exposed to higher temperatures. Because the battery is significantly heavier and bulkier than lithium-ion, lithium iron phosphate is best suited for fixed applications, while it can be employed in some portable technologies.

Lithium iron phosphate might not be considered for situations where transportation is a critical factor due to its increased weight. Lithium-ion batteries are utilized in smartphones, laptops, and tablet devices.

LiFePO4 batteries have shown to be useful in a variety of applications, including:

Solar Systems

As they are lightweight, you can transport them to any location where you will need to set up a solar system, even if it is at the top of a mountain and far from civilization.

Kayaks & Fishing Boats

You may spend more time on the water because they offer a longer runtime and a shorter recharge time. Reduced weight on your boat implies it will be more maneuverable and capable of moving quickly.

Commercial Application

As LiFePO4 batteries are so safe and durable, they have a wide range of commercial applications.

Mobility Scooter & Mopeds

If you merely want to go on an unplanned trip, you don’t have to recharge them completely.

LiFePO4 batteries also have the ability to light electronic cigarettes, emergency lamps, flashlights, radio equipment, and other devices.